Ever since Bonnie (Kat Graham) brought Jeremy (Steven R. McQueen) and his arms back from the dead, he's had that pesky little problem of being the only person in Mystic Falls that can see ghosts. But when "The Vampire Diaries" Season 5 rolls around this October, that once-annoying skill will be Bonnie's saving grace ... since she is completely, totally, officially dead.

No loopholes here, folks: Bonnie's death in the "TVD" Season 4 finale is sticking. "The show starts where it left off," Graham tells The Hollywood Reporter. "The only person that can see her is Jeremy because he can see dead people."

Bonnie -- who has always had a fiercely loyal relationship with her friends and family -- will have a hard time adjusting to not being able to interact with anyone except her ex-boyfriend ... though that might actually mean good things for her and Jeremy, romance-wise. "She loves her friends and family and she can't connect to them, and it creates an intimacy relying on one person as your connection to the one thing that matters the most to you," Graham says. "It's a really beautiful thing to see. She only has him at this point."

And as for that whole "being dead" thing, Graham is excited for The CW series to finally explore the concept of what happens to supernatural beings when they die, a.k.a. the mysterious "other side" that has long been referenced but never actually seen. "That's something new for the fans," Graham says. "They'll be able to see that side that hasn't been explored yet."

Something else Graham is looking forward to exploring: how her death and continued distance from her loved ones will affect Bonnie as a person. "When you have to be alone because you don't have a choice, it can affect your subconscious," Graham says. "It's going to be very interesting to see if that at all affects the character -- and if she even comes back from the dead, how she will be when she returns."

So could "TVD" pull another Jeremy and bring Bonnie back from the dead in the future? Graham admits that she doesn't know if/when that will happen. "I'm actually fine with it either way," Graham says. "As long as the character story lines are interesting and there's something more for me to bring, I'm always up for a challenge."